DFHERM
DFHERM is the Resource Manager Interface (RMI) module. It manages the connection between CICS and non-CICS products. It is called by DFHEIP on behalf of the other components of CICS.
Hints
High activity in this module can be caused by calls for IMS or Db2 services via one of the following commands:
EXEC DLI
CALLDLI
EXEC SQL
In addition, some other task-related user exit (TRUE) may have been invoked.